forked from luck/tmp_suning_uos_patched
0809ab69a2
There's a lot of common code in inode and mount marks handling. Factor it out to a common helper function. Signed-off-by: Jan Kara <jack@suse.cz> Cc: Eric Paris <eparis@redhat.com> Cc: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
61 lines
2.5 KiB
C
61 lines
2.5 KiB
C
#ifndef __FS_NOTIFY_FSNOTIFY_H_
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#define __FS_NOTIFY_FSNOTIFY_H_
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#include <linux/list.h>
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#include <linux/fsnotify.h>
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#include <linux/srcu.h>
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#include <linux/types.h>
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/* destroy all events sitting in this groups notification queue */
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extern void fsnotify_flush_notify(struct fsnotify_group *group);
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/* protects reads of inode and vfsmount marks list */
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extern struct srcu_struct fsnotify_mark_srcu;
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/* Calculate mask of events for a list of marks */
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extern u32 fsnotify_recalc_mask(struct hlist_head *head);
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/* compare two groups for sorting of marks lists */
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extern int fsnotify_compare_groups(struct fsnotify_group *a,
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struct fsnotify_group *b);
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extern void fsnotify_set_inode_mark_mask_locked(struct fsnotify_mark *fsn_mark,
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__u32 mask);
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/* Add mark to a proper place in mark list */
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extern int fsnotify_add_mark_list(struct hlist_head *head,
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struct fsnotify_mark *mark,
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int allow_dups);
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/* add a mark to an inode */
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extern int fsnotify_add_inode_mark(struct fsnotify_mark *mark,
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struct fsnotify_group *group, struct inode *inode,
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int allow_dups);
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/* add a mark to a vfsmount */
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extern int fsnotify_add_vfsmount_mark(struct fsnotify_mark *mark,
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struct fsnotify_group *group, struct vfsmount *mnt,
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int allow_dups);
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/* vfsmount specific destruction of a mark */
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extern void fsnotify_destroy_vfsmount_mark(struct fsnotify_mark *mark);
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/* inode specific destruction of a mark */
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extern void fsnotify_destroy_inode_mark(struct fsnotify_mark *mark);
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/* Destroy all marks in the given list */
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extern void fsnotify_destroy_marks(struct list_head *to_free);
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/* Find mark belonging to given group in the list of marks */
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extern struct fsnotify_mark *fsnotify_find_mark(struct hlist_head *head,
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struct fsnotify_group *group);
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/* run the list of all marks associated with inode and flag them to be freed */
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extern void fsnotify_clear_marks_by_inode(struct inode *inode);
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/* run the list of all marks associated with vfsmount and flag them to be freed */
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extern void fsnotify_clear_marks_by_mount(struct vfsmount *mnt);
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/*
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* update the dentry->d_flags of all of inode's children to indicate if inode cares
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* about events that happen to its children.
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*/
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extern void __fsnotify_update_child_dentry_flags(struct inode *inode);
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/* allocate and destroy and event holder to attach events to notification/access queues */
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extern struct fsnotify_event_holder *fsnotify_alloc_event_holder(void);
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extern void fsnotify_destroy_event_holder(struct fsnotify_event_holder *holder);
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#endif /* __FS_NOTIFY_FSNOTIFY_H_ */
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